Table 3 Agreement of MR severity using clinical echocardiograms available within increasing timeframes from the date of CMR
| Â | Indirect volumetric method | Direct 4D flow CMR method | ||
|---|---|---|---|---|
Kappa | p-value | Kappa | p-value | |
Echocardiogram | ||||
 1 week (n = 6) | 0.08 | 0.80 | 0.54 | 0.07 |
 2 weeks (n = 7) | 0.15 | 0.58 | 0.60 | 0.03 |
 1 month (n = 15) | 0.16 | 0.35 | 0.35 | 0.04 |
 3 months (n = 27) | 0.17 | 0.20 | 0.37 | 0.04 |
 6 months (n = 30) | 0.15 | 0.21 | 0.25 | 0.04 |